PARIS â€“ June 8, 2005 - Dassault SystÃ¨mes (NASDAQ: DASTY; Euronext Paris: #13065, DSY.PA) today announced the launch of Cosmic Blobs(R) software version 1.1 for Apple Macintosh(R) and Windows(R) PC systems. Available for the first time on the Mac(R) computer, Cosmic Blobs (www.cosmicblobs.com) is the worldâ€™s most powerful 3D graphics creativity software ever invented for kids, and now includes a movie file capture feature, improved content graphics, and an expanded user interface. Cosmic Blobs acts like modeling clay on the computer, enabling users to design and animate creations in the style of todayâ€™s coolest computer-generated cartoons and movies.

Originally released for the PC in 2004, Cosmic Blobs gives children ages 7 to 14 endless options for sculpting, decorating, and animating 3D computer
models called â€œBlobs.â€ Kids start with basic shapes, and use an array of tools to bend, pull, stretch, and sculpt their inventions. They can then decorate
them with colors, textures, and decals before bringing them to life with animation. With Cosmic Blobs version 1.1, budding artists enjoy an improved user interface, new decals and textures, downloadable bonus content, and the ability to capture animated movies.

â€œCosmic Blobs version 1.1 incorporates powerful new features and enhancements based on feedback we received after the initial launch six months ago. Kids can now capture and save their animated movies, and the improved user interface and starter content make it easier than ever for children to interact with 3D modeling technology,â€ said Scott Harris, Cosmic Blobsâ€™ creator. â€œThe Mac platform is considered a standard in graphic design for various consumer and entertainment creativity applications, and Cosmic Blobs is a unique 3D application that is sure to appeal to the Mac community.â€

Cosmic Blobsâ€™ integration with the iLife(R) and iWork(TM) applications further enhances the programâ€™s functionality on the Mac. Cosmic Blobs also aligns well with Appleâ€™s commitment to content creativity, particularly with the education market.

The original PC-only version of Cosmic Blobs, Lab Rat Edition, has earned significant recognition from various parentsâ€™ and childrenâ€™s product review
organizations, including a 2005 Parentsâ€™ Choice Recommended award, a 4.5 star rating from Childrenâ€™s Technology Review, and a listing as one of Dr. Toyâ€™s Smart Play/Smart Toy Childrenâ€™s Products for 2005. Cosmic Blobs successful adoption into school systems around the world has also contributed to the new versionâ€™s design as the development team incorporated feedback from educators and students extensively while building version 1.1.

Dassault SystÃ¨mes will release themed expansion packs for Cosmic Blobs on a regular basis, with the first, â€œCritter Chaos,â€ included free with this new
version of the program. â€œCritter Chaosâ€ includes fantastic animal-themed models, textures, decals, animations, and background options. Bonus Cosmic Blobs content and instructional information is also available through the use of Mac OS X Tigerâ€™s new Dashboard functionality. The Cosmic Blobs â€œWidget,â€ the first designed specifically for children, provides desktop access to models, tutorials, and educational curricula for kids, parents, and educators.

Cosmic Blobs runs on Macintosh OS X version 10.3 Panther and 10.4 Tiger with a G4 1.25 GHz processor or better and 256MB of RAM. For Windows PC, a Pentium III 1.0 GHz processor or better, 256MG of RAM, and a 32MB 3D video card is recommended.

Pricing and Availability
Cosmic Blobs version 1.1 is available for purchase online at www.cosmicblobs.com or at Amazon.com with an MSRP of $44.99. Cosmic Blobs will be available for the first time in retail at the Apple Company Stores beginning in July 2005.

For more information on Cosmic Blobs, visit www.cosmicblobs.com.

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About the Cosmic Blobs Team
Cosmic Blobs(R) computer software is the result of sustained efforts to bring the power of 3D computer graphics to everyone, including children. The Cosmic Blobs team is a dedicated group of programmers, mathematicians, artists, and visionaries â€“ all kids at heart. For more information, visit
www.cosmicblobs.com.

About Dassault SystÃ¨mes
As world leader in 3D and PLM (Product Lifecycle Management) solutions, the Dassault SystÃ¨mes group brings value to more than 80,000 customers in 80 countries. A pioneer in the 3D software market since 1981, Dassault SystÃ¨mes develops and markets PLM application software and services that support industrial processes and provide a 3D vision of the entire life cycle of products from conception to maintenance. Its offering includes integrated PLM solutions for product development (CATIA(R), DELMIA(R), ENOVIA(R), SMARTEAM(R)), mainstream 3D design tools (SolidWorks(R)), and 3D components (Spatial/ACIS(R)). Dassault SystÃ¨mes is listed on the Nasdaq (DASTY) and Euronext Paris (#13065, DSY.PA) stock exchanges. For more information, visit http://www.3ds.com.